Surfacing-machine for bowling-alleys.



L. ENGEL. SURFAGING MACHINE FOB BOWLING ALLEYS. APPLICATION FILED JUNE 12, 1912.

Patented Apr. 1, 1913.

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SURFACING MACHINE FOB. BOWLING ALLEYS. APPLI'GATION rum) mm: 12,1912.

1,057,953. Patented Apr. 1, 1913.

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LOUIS ENGEL, E CLEVELAND, OHIQ.

'SURFACING-MAGHINE BGWLING-ALLEYE.

To all whom it may concern:

Be it known that I, LOUIS "Enone, a citizen of the United States, residing at Cleveland, in the county of Cuyahcga and State of" Ohio have invented new and useful 1mrovements in Surfacing-Machines for owling-Alleys, of which the following is a specification. I

This invention relates to surfacing machines for bowling alleys, the object of the invention being to provide a simple, motor 0 erated machine which will propel itself a ong the bed of the bowling alley, and siacing elements existing conditions, so that. an desired amount of surface may be remove from the lley bed, and the alley leveled up. With the above-and other objects in view, the invention consists in the construction, combination and arrangement of parts, as will be hereinafter more fully -described, illustrated in the accompanying drawings, out in. the claims hereunto'ap pended.

In the drawings; Figure 1 .tion of a sgriacing machine, embodying the present-invention, showing the lateral gage arms on. Fig.2 is a plan view 0 the same. Fig. tion through the machine, taken about centrally'thejxffqf. Fig. 4 is a rear elevation of'the'miv'elime, showin alley which is illustrate partly in section.

.Fig. is a detail vertical longitudinal section showing the surfacing drum, the arms which said drum is carried,.and the s 'ds andrunners. Fig. 6 is a detail sec- :tional view oft-one oi the runners, showing a tion' comprises a portion of one of the skid arms.

The machine contemplated in this inventruck frame 1, embodying a platform 2 and mounted upon front and rear carryin wheels 4 and 5, respectively, the rear w eels 5 constituting traction wheels for pro elling the -machineas a whole along t e surface of the alley. Mountedupon the platform 1 is a motor 6 which is shown as an electric motor, desig-' control of the mona'tin the switch box or the shaft of the tor; rom a pulley 8 on vmotor, a driving belt 9 passes around a hand wheel 10 on the-main driving shaft 11 of the surfacing machine, the said shaft being mounted in suitable bearingsor hangers 12 fastened to the truck frame.

is a side elevav 3 is a vertical longitudinal secits relation to an of oppositely v Speciflcaticnof hetters Patent. Fatgnteti Apr, 1-, ifiiig, Application filed June 12, 1912. Serial No. 7933M. The traction wheels 5 are mounted fast on,

axle l3, and this axle is driven a rotating in the manner illustrated in Fig. 3, said axle having fast thereon a worm wheel 14 which is driven by a worm 15 on a counter shaft 16 journaled in suitable bearings 17 to the truck frame, The

and 15% connected same shaft 16 is provided -with a worm wheel 19 which is actuated by a worm 20 on the main driving shaft 11, above referred to. This provides for along the surface of ated upon.

Mounted in advance of the front carryih wheels 4 is a surfacing drum 21, the she in a pair of pivoted carrying arms 23, said arms being purnaled at ends of the shaft 11. The surfacing drum 2]. has applied thereto a covering of sand paper, of any desired fineness or coarsedriving the truckthe alley being i 22 ofwhich is journaled at its opposite ends 24 on the opposite i7 ness, according to the work'to he performed-" and the shaft of the drum is providedat its onposite ends with pulleys 26, around which pass driving belts 27 which extend backward around pulleys 528 on the opposite ends of the'rnain driving shaft 11. In

motion is simultaneously imparted to the traction wheels 5 and the surfacing drum 21.

Arranged in parallel relation to the pie oted arms 23 which are connected to the arms 23 by: a. shaft 30 extending across the machine and adjustable up and down adjusting screws 31, said screws having a are other pivoted arms'flll" by means of shaft swiveled connection attheir lower ends with sleeves 32 which are loose on the shaft 301. The arms 29 are provided with arched extensions 33 which extend over; the surfacing drum 21, and are provided 1n advance as said drum with forwardly projecting 34,, to the bottom of which are secured a pair arranged skids up and down with respect to means of screws 36, the skids ther provided 37 which work in sockets 38, so as to steady the skids and prevent the same'fronl swinging laterally. By means of the screws 36, the skids may i so as to give the drum 21 sure against the surface of the Just 111 rear of the surfacin the feet '34 by 35 being furalley". v drum 21', and

35 adjustable with upstanding guide pins beadjusted up g aqwn,

any desit edlpresat opposite sides of the mac' ine there are arranged runners, cne of which is illustrated in Fig. 6, said runner comprising a head 39 having an arm 40 which is connected to and depends from the shaft 30, above described. On the lower side of the head 39 is a runner shoe 41, comprising a plurality of rollers 4C2 which project below the bottom of the runner 41, as shown in Fig. 6. The runner head and the runner carried thereby are adjustable up and down by means of a screw 1L3 threaded through a lug M on the adjacent skid arm 29. The runner shoe ll is also provided at the front and rear with guide pins 45' extending up through holes in the runner head, and provided with enlarged heads 46 which move up and down in sockets or guide ways 47 formed in the head, thus maintaining the parallelism between the runner head and runner shoe while permitting the shoe to be adjusted in a manner described, for the purpose of enabling the truck frame as a whole totravel easily and smoothly along the alley being planed,

and for the further purpose, in conjunction with the skids 35, of preventing undue vi-' bration of the machine under the impulses of the motor. 1

Operating in advance of the skids 35 is a polisher 48, consisting of a flat plate or board adapted to have a covering of sand paper, carpet, or other polishing fabric applied to the lower surface thereof, so as to operate in direct contact with the surface of the alley. This polisher 4:8 is connected by means of rods 49 to the crank pins 50 projecting laterally from the pulleys or hand wheels 26, as shown in Fig; 2. Reciprocatory motion in a back and forth manner is thus imparted to the plate.

Arranged at the rear of the machine is a traction relief roller 51 which is carried by a swinging U-shaped frame 52 journaled at itsupper end in bearings 53 on the truck frame, thus enabling said frame to be swung upward or downward, and when said frame is in its lowermost position, the roller 51 travels in contact with the surface of the alley, and elevates the traction wheels 5,

justa sullicient amount to enable the truck frame as a whole to be pushed along the alley, while the motor 6 is out of operation, this feature being useful in order to adapt the machine to be moved backward to its initial point of operation, without actuating the surfacing mechanism.

Cleaning brushes 54 are arranged adjacent to the treads of th e carrying wheels 4 and 5, as shown in Fig. 1', and fenders 55 are also arranged adjacent to the wheels,.so as to catch the dust and deflect the same out of the way, giving the wheels a perfectly smooth and clean surface to travel on, thereby adding greatly to the accuracy of the machine in its operation.

Extending across between the arched por tions 33 of the skid carrying arms is a cross with guide slots 62, in which the shaft 30 is adapted to move up and down in effecting the adjustment here-inabove referred to.

In order to cause the machine to travel in a straight course along the alley, I provide the machine at opposite sides with gage arms 63 provided at their extremities with gage rollers 64: which travel in contact with the side division rails 65 of the alley, as shown in Fig. 4. Each of the arms 63 is adjustabl mounted on the adjacent end of the sha t 30 by means of a set screw 66. Other lateral gage arms 67 are adjustably connected by means of set screws 68 to the rear end of the truck frame, as shown in Fig. 2, and are provided at-their outer ends with gage rollers 69 which also, travel in contact with the side division rails 65, as is also shown in Fig. 4. This steadies the machine in. its

movement along the alley, and insures the.

entire width of the alley being simultaneously operated upon by the surfacing and polishing elements, hereinabove described.

In order to provide for keeping the proper tension on the main driving belt 9, the motor 6 is shown as provided with feet 70 which engage dove-tailed guides 71 on the platform 2, the motor being adjustable back and forth by means of adjusting screws 72 threaded through lugs 73 project-mg upward from the platform 2.

What is claimed is: 1. A bowling alley surfacing machine,

comprising a truck frame, front and rear axles and carrying wheels therefor, a motor mounted on the truck and geared to one of said axles, a surfacing drum geared to and driven by said motor, and vertically adjustable skids for elevating and depressing said doom.

2. A -bowling alley surfacing machine, comprising a truck frame, front and rear axles and carrying wheels therefor, a motor mounted on the truck and geared to one of said axles, a surfacing drum geared to and driven by said motor, pivoted arms carrying said drum, and vertically adjustable.

skids attached to said arms for elevating and depressing said drum.

A bowling alley surfacing machine, comprising a truck frame, front and rear axles and carrying wheels therefor, a motor mounted on the truck and geared to one of said axles, a surfacing drum geared to and driven by said motor, pivot-ed arms carrying said drum, and runners attached to said arms and embodying liftaole and depressible:

shoes for elevating and depressing said drum.

4. A, bowling alle surfacing machine, comprising a truck ame, front and rear 'axles and carrying wheels therefor, a motor sions over the'drum, and vertically adjust-- able skids attached to the arched extensions of said arms. a I

5. A bowling alley surfacing machine, comprising a track frame, front and rear axles and carrying wheels therefor, a motor mounted on the truck and geared to one of said axies, a surfacing dium geared to and driven by said motor, m'eans for elevating and depressing said drum, a bar extending parallel to the axis of the drum, and a spirit level on said bar.

6. A bowling alley surfacing machine, c omprising a truck frame, front a'nd rear axles and carrying wheels therefor, a motor mounted on the truck and geared to one of said axles, a surfacing drum geared to and driven by said motor, means for elevating and depressing said drum, and lateral gage arms projecting from the truck.

7.'A bowling alley surfacing machine,

comprising a truck frame, front and rear axles and carrying wheels therefor, a motor mounted on the truck and geared to one of said axles, a surfacing drum geared to and driven by said motor, means for elevating and depressing saiddrum, and lateral gage rollers at opposite'sides of the truck.

8. A bowling alle comprising a truck axles and carrying wheels therefor, a motor mounted on the truck and, geared'to one surfacing machine,

me, front and rear of said axles, a surfacing drum geared to and driven by said motor, a reciprocating polisher geared to and actuated by said drum, and means for elevating and depressing said drum.

9. A bowling alley surfacing machine, comprising a truck frame, front and rear axles and carrying wheels therefor, a motor mounted on the truck and geared to one of I said axles, a surfacing drum geared to and driven by said motor, a reciprocating polisher, actuating rods connecting thqgolisher to crank pins on said drum, and means for elevating and depressing said drum.

In testimony whereof I afiix my signature in presence of two witnesses.

- LOUIS ENGEL.

Witnesses:

BERNARD KROEGKEL, JOSEPHINE 'KnoEoKEL. 

